I would say this would be the best option - I am looking to port my Sublime-Nodejs package over, and I would mostly like to script things with JavaScript - but there is no need to embed anything like NodeJS in Sublime Text when there is PyV8.

*However* I would love to see the API fully exposed to PyV8 so you have the full option to script in either Python or JS

Lol. Javascript isn't really that bad. It can actually be kind of fun. I find the browsers inconsistencies the worse part when working with JS. Take out the browsers, it is actually kind of fun...though I wish regex was better in JS.

With that said, it isn't my scripting language of choice, but I like playing with it on occasions.

I think supporting JS for plugin dev would be awesome and there'd be huge community support.

Speaking very theoretically and with only the faintest familiarity with the plugin architecture of ST, I would guess it would be possible to write a plugin that bridged the ST plugin python API to JS effectively creating a plugin that allowed for JS plugin dev. It might not even be *that* much of a hack. All take my answer off the air